用动电位极化法、电化学阻抗谱(EIS)和失重法研究了3-氨基-5-巯基-1,2,4-三唑(3-AMT)在除盐水中对Cu腐蚀行为的影响和吸附规律.研究表明,缓蚀效率随着缓蚀剂3-AMT浓度的上升而增大,当其浓度大于4×10~(-5)mol/L时,对Cu具有较好的缓蚀性能,3-AMT是一种混合型缓蚀剂.吸附过程为放热过程,属化学吸附,服从Langmuir吸附等温式.
The corrosion behavior of copper in the presence of 3-amino-5-mer capto-1,2,4-triazole(3-AMT)has been investigated in deionized water.Potentiodynamic polarization,electrochemical impedance spectroscopy (EIS)and weight-loss measurement were applied to analyze the effect of the organic compounds on the corrosion inhibition of copper.Results showed that the inhibition efficiency increased with increasing the inhibitor concentration and the compound acted at anodic-type inhibitor.The adsorption of 3-AMT has been found to occur on the surface of copper according to the Langmuir isotherm.3-AMT is chemically adsorbed on the copper surface.
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